Patents by Inventor Robert C. Pearce, III

Robert C. Pearce, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Point source insecticide dispenser
    Patent number: 5396730
    Abstract: A point source insect control device which comprises a frangible container poorly permeable to gases and liquids containing a liquid insecticidal substance capable of translocation; a sheet of absorbent material at least one portion of which at least partially surrounds or is in close proximity with the container, and an enclosure for the container and absorbent sheet which bears multiple perforations or apertures sufficient to allow translocation of the insecticidal substances once the frangible container is ruptured.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: March 14, 1995
    Assignee: Sandoz Ltd.
    Inventors: Douglas N. VanGundy, Lloyd T. Tate, Eric P. Duffey, Robert C. Pearce, III
  • Delayed time actuation for total-release containers and similar devices
    Patent number: 4823986
    Abstract: Time-delayed propellant device for release of an active agent from the device by materials which are susceptible to displacement by various actuating factors in the propellant device.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: April 25, 1989
    Assignee: Sandoz Ltd.
    Inventor: Robert C. Pearce, III
  • Pest control device comprising .alpha.-cyano-3-phenoxybenzyl 2-(2-chloro-4-trifluoromethylanilino)-3-methylbutanoate
    Patent number: 4536388
    Abstract: A pest control device, such as an ear tag, for controlling pests such as flies, fleas and ticks on animals such as cattle and other livestock or pet animals which comprises a polymeric resin matrix and the pesticidally active compound .alpha.-cyano-3-phenoxybenzyl 2-(2-chloro-4-trifluoromethylanilino)-3-methylbutanoate.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: August 20, 1985
    Assignee: Zoecon Corporation
    Inventor: Robert C. Pearce, III